The Cisco Catalyst 4500 Series offers a variety of gigabit-over-copper solutions for wiring closets and server farms, enabling high-density gigabit connectivity to the desktop and servers over Category 5 copper cabling.PRODUCT FEATURES:24 ports;10/100/1000 (RJ-45);Cisco IOS Software Release 12.2(20)EW or later;IEEE 802.3af and Cisco prestandard PoE, IEEE 802.3x flow control;Bandwidth is allocated across six 4-port groups, providing 1 Gbps per port group;Enterprise and commercial: designed to power IP phones, wireless base stations, video cameras, and other IEEE-compliant powered devices.